Thomas dill



.tnumodel.) T. DILL.

v EXGAVATING MACHINE. N0J244fi13. Patented July 19,1881.

1;, Vania; I

r J%ma/ '8 Lu 0 N, PETERS, Phntc-ljlhagnphar, Wnhinglon. D. C.

' l .f 1 UNITED- STATES,

P T T 'rnonns DILL, on BAYV'CITY', ASSIGNOR To JAMES (ELEMENTS, OF ANN 1ARBOR, MICHIGAN.

EXCAVATING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 244,718, dated July 19,1881.

i Application filed January 13, 1881. (No'modeL) To all whom it mayconcern:

. Be it known that I, THOMAS DILL, of Bay City, in the county of Bay andState of Michigan, have invented a new and useful Improvement inExcavating-lilachines, of which the following is a specification.

In the drawings, Figure 1 is a side view with the lower portion insection. Fig. 2 is a top sectional view on line as :r in Fig. 1. Fig. 3is an end view of the front of the car, showing the hydraulic jacks.

Z is the frame of a railway fiatcar.

My invention relates to excavators and hoisting-machines whichf areconstructed with a swinging crane; and it consists, first, in theconnection of the must of the swinging crane, by suitable means, with ashaft which is rigidly connected to an oscillating piston, so that thecrane may he swung from side to side and held many desired position bythe direct pressure of steam applied to the piston; second,in using forswinging the crane a circular steam-cylinder in which oscillates a.piston carryiu g a shaft, with suitable connections between the shaft.and must of the crane; third, in the use of inverted hydraulic jacks forsteadying the forward end of a car which carries an excavating-machineoperated by an injector or pump driven by the boiler which works theexcavator.

A is a circular steam-cylinder.

B is a piston pivoted in a circular frame, D, concentric with cylinderA, and which oscillates in cylinder A.

G is a stationary partition or cylinder-head in cylinder A, making asteam-tight joint with circular frame D.

E is a shaft rigidly attached to the center of frame D.

YY are steam-pipes for supplying steam' to cylinder A.

I is a valve worked by lever S, hy which steam can he admitted to orexhausted from either of the steam-pipes Y Yat pleasure.

T is u steam-pipe leading from a boiler to valve I. p y

F is a wheel or policy on the upper end of shaft E. V

B. is thcinast of the crane U of an excavating or hoisting machine, setso as to be capahle of turning on its axis.

G is a pulley attached to the upper end of 'mast H.

Wis an endless rope or chain passing around pulleys F and G, which ropeis to be attached at suitable points to the respective pulleys, so as toavoid slipping when the pulleys are in use. The pulleys are to be soproportioned that turning pulley F less than one turn in eitherdirection will swing the mast H to the full extent ofits desired motion.WVhen steam is admitted to the leftrhand pipe Y in Fig. 2

it will enter the cylinder A and force the piston B in the directionindicated by the arrow, thus turning shaft E and pulley F. W'hen thecrane is swung as far as required steam can he admitted through therighthand pipe Yto cushion the piston, and to force it in the con-'trary direction, when desired. Valve I is so adjusted that when itadmits steam to either pipe Y it exhausts the other pipe Y.

K K K are inverted hydraulic jacks attached to a frame extending acrossthe front end ofthe Year. At the upper end of the piston of each jack isa spiral spring, N, strong enough to hold the piston clear of the groundwhen thejack is not in use.

P is a pump or injector, by which water can:

be forced through pipes O and B. into all of the jacks simultaneously.When the excavator or hoisting-machine is' ready for' work water isforced into the jacks until theiweight of the forward endot the carisborne upon the jacks in order to steady the machine.

What I claim as my invention, and desire to secure by- Letters Patent,is-

1. In an excavating apparatus, the combination of a vertical mastpivoted in hearings to permit its rotation, and connected withaswingving crane, with a vertical shaft rigidly counccted at its lowerend with the oscillating piston of a steam-cylindcr, and at its upperend connected with the mast of the swinging crane, substantially asdescribed, whereby when the said piston is oscillated the mast of thecrane is rotated in its bearings and swings the crane,

as set forth.

2. In an excavating ap-paratus, the combination, with a verticalmastar'ranged to rotate in bearings and connected with a swinging crane,and proridedtat or'near its upper end with an attached pulley, of avertical shaft connected at its lower end with the oscillating piston ofa steam-cylinder and provided, at or near its upper end, withjauattached pulley, and a ropeor chain connecting the pulley of the mastand the'said'shaft, substantially as described, whereby when'the pistonis oscillated the mast will be rotated and swing the crane, as setforth. I I 4 3. The combination of the cylinder A, piston B, centerD,'shaft E, pulleys F G, connected by suitable ropesor chains, and mastH t5

